I would like to factor a large integer like 1+ 347111829477612319932252184313642207357157789349151272447639603640791036821677612714434392047106471149851. I tried Sage Cell Server but this number is probably too large. Could someone give me some suggestions? By the way, factoring a smaller number like 1+ 34711182947761231993225218431364220735715778934915127244763960364079103682167761271443439204*710647 takes Sage Cell only about 15 seconds.